NCT04478734

Brief Summary

Evaluate the safety and tolerability of combined oral thiamine with biotin therapy in patients with Huntington´s disease in mild to moderate stages and it is intended to evaluate the biological effect of the treatment in the central nervous system of these patients using as the main biomarker the increase in the level of thiamine monophosphate (TMP) in cerebrospinal fluid (CSF) of these patients with Huntington Disease (HD) during a follow-up period of one year. Our main hypothesis is that combined thiamine-biotin oral therapy is a secure and well-tolerated treatment, potentially capable of modifying the disease course or avoiding the progression of symptoms in early-stages HD patients

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
24

participants targeted

Target at below P25 for phase_2

Timeline
Completed

Started Apr 2023

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 11, 2020

Completed
5 months until next milestone

First Posted

Study publicly available on registry

July 21, 2020

Completed
2.7 years until next milestone

Study Start

First participant enrolled

April 12, 2023

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2025

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2025

Completed
Last Updated

February 25, 2025

Status Verified

January 1, 2025

Enrollment Period

2.2 years

First QC Date

February 11, 2020

Last Update Submit

February 24, 2025

Conditions

Keywords

thiamine and biotinecombination therapy

Outcome Measures

Primary Outcomes (1)

  • Incidence of Treatment-Emergent Adverse Events as assessed by clinical examination anamnesis and Analytical monitoring with hematological and biochemical control (hepatic and renal function)

    Patient´s condition and emergence of comorbidity by clinical examination and anamnesis directed by a neurologist, by measuring of vital signs (blood pressure, heart rate,breath rate weight and height)

    From signature of informed consent form, at all scheduled visits, to end of follow up week 52

Secondary Outcomes (1)

  • The evaluation of the efficacy of treatment with combined oral thiamine and biotin therapy in increasing thiamine monophosphate (TMP) levels in CSF of patients with HD

    At baseline (week 0) and visit 8 (week 48)

Other Outcomes (6)

  • Evaluate the biological effect of the combined thiamine-biotin oral therapy in the neurodegeration of HD patients

    At baseline (week 0) and visit 8 (week 48)

  • Evaluate the biological effect of the combined thiamine-biotin oral therapy in the neuroimaging progression markers in patients with HD

    At baseline (week 0) and visit 8 (week 48)

  • Evaluate the effect of the combined thiamine-biotin oral therapy in the quality of life of patients with HD

    At baseline (week 0), week 24 and week 48

  • +3 more other outcomes

Study Arms (2)

Moderate doses

EXPERIMENTAL

moderate doses of combination therapy applying the minimum average dosage of thiamine and biotin used in patients with BTBGD

Drug: Moderate doses of Thiamine y Biotin

High doses

EXPERIMENTAL

high doses of the combination therapy applying the average standard dosage of thiamine and biotin used in patients with BTBGD.

Drug: High doses of Thiamine y Biotin

Interventions

Thiamine 600 mg every day + Biotin 150mg every day

Also known as: moderate doses of combination therapy
Moderate doses

Thiamine 1200 mg every day + Biotin 300mg every day

Also known as: high doses of the combination therapy
High doses

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients of legal age with manifest Huntington's disease with motor symptoms (chorea, dystonia or bradykinesia) and/or neuropsychiatric; and genetic confirmation of a number of repetitions of the cytosine-adenine-guanine trinucleotide (CAG triplet) in the HTT gene (coding for HTT) greater than or equal to 39
  • Patients should be capable of giving informed consent and attending the planned visit of the study.
  • Women of childbearing age should obtain a negative result in the serum or urine pregnancy test at the screening visit. They must also accept the use of appropriate contraceptive methods during the course of the clinical trial and men who have a partner of childbearing age, accept the use of contraceptive methods

You may not qualify if:

  • Medical comorbidities considered clinically significant by the clinical judgment of the investigators.
  • Pregnancy or lactation
  • Patients with HD dependents on the basic routine daily life activities (UHDRS TFC \< 7) or a severe cognitive decline.
  • Active psychosis at the moment of the screening evaluation.
  • Severe renal failure.
  • Patients previously treated with thiamine and/or biotin or enrolled in other HD clinical trial with oligonucleotide antisense (IONIS-HTTRX (RG6042).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Hospital Universitario de San Sebastián

San Sebastián, San Sebastian, 20014, Spain

RECRUITING

Virgen del Rocío Hospital

Seville, Seville, 41013, Spain

RECRUITING

Hospital Ramón y Cajal

Madrid, Spain

RECRUITING

MeSH Terms

Conditions

Huntington Disease

Condition Hierarchy (Ancestors)

Basal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesDementiaChoreaDyskinesiasMovement DisordersHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesCognition DisordersNeurocognitive DisordersMental Disorders

Study Officials

  • Pablo Mir Rivera, MD/PhD

    Institute of Biomedicine of Seville (IBiS)

    STUDY DIRECTOR
  • Clara M. Rosso Fernández

    Virgen del Rocío University Hospital Research and Clinical Trials Unit

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Pablo Mir Rivera, MD/PhD

CONTACT

Clara M. Rosso Fernández, MD/PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 11, 2020

First Posted

July 21, 2020

Study Start

April 12, 2023

Primary Completion

June 30, 2025

Study Completion

December 30, 2025

Last Updated

February 25, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will share

Once the study is completed and the data processed, the results will be shared

Shared Documents
STUDY PROTOCOL, CSR
Time Frame
After the primary completion date and submit results information
Access Criteria
collaborating researchers

Locations